car is still overheating on warmer days

1978 TOYOTA CELICA
115,000 MILES
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DIPSYS
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78 toyota celica 20R engine new water pump thermostat fan clutch radiator flush and fill car is still overheating on warmer days. on warmer days on the interstate 75 mph the gauge will almost top out
for the tempature on cooler days it does not do this. do i need a new gauge or radiator?
Oct 11, 2011 at 9:07 PM
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ASEMASTER6371
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it sounds like your rad is clogged. the fact you have driven it hot is not good as you may have done internal damage to the motor. I would replace the rad and hope you dont have head gasket problems.

Roy
Oct 11, 2011 at 10:02 PM